One more thing, you probably see those fancy tags after some users names like 'D1 Runner' or 'EMT'. If you're an elite runner looking for recognition or have something of use for the community, click here to apply!.

Question 1: I can already run 6 miles so should I start on the week where the distantce run is 6 miles?

Question 2: (newb question) Sometimes it feels like I can run 6 miles other times I am barely able to finish 4, there usually isnt a pace difference. Is this common? lol.

Question 3: The Marathon is in June but the training is 16 weeks with the last few weeks being a gradual reduction of distance runs to prepare... If Im doing the marathon later than that what is ther best way to go about it?

Question 4: What are some comprehensive diet plans I can read up on? What is considered the most optimal plan?

I am very serious about running a marathon. Running has become kind of cathartic and empowering for me. I have developed a strong need to run, on off days I feel weird not running so, sub question 5: Is it ok to go against the plan and run more than the training amount on run days, and maybe little 1.5 mile runs on rest days?

Question 1 - Start at the beginning. These training programs are designed to build a strong base. You don't finish a marathon by running 26.2 miles, you finish a marathon by running the hundred+ miles in training. The 26.2 is just the victory lap.
Question 2 - The program will help with that. You will build a base, but there will still be good days and bad days.
Question 3 - I would suggest starting the program 16 weeks before the marathon. This way you will peak at just the right time. Maybe throw in a half marathon before that so you get used to running in groups, drinking water from tiny cups, etc.
Question 4 - I have heard that some marathoners gain weight while training because they are hungry after runs and go overboard. Just stick to a simple diet and be sure you are getting enough calories to compensate for the energy you are putting out.
Question 5 - rest when it says to rest. Those days allow your body to heal and to strengthen the muscles you used in the last run. And when you over train you are prone to injury. Maybe go for a bike ride or do some strength training instead.

Best of luck - and remember, when you take that first step on the day of the marathon you have already beat of your friends that are still in bed. Enjoy the ride and believe in yourself!

If you have a 16-week plan and more than 16 weeks to prepare for a race, your best bet to build up base. That means a bunch of LSD right now until such a time as you are 16 weeks out. How much LSD? As much as you can do without hurting yourself!

Then, once you're 16 weeks out, pick a plan that starts at whatever TOTAL WEEKLY MILEAGE you are currently running. The all-caps is important, because starting on a week that puts the long run as whatever your personal best distance is currently is a terrible idea. Just don't do it.

The best diet plan is the one that gives you sufficient calories. I don't recommend any specialty diet because they're far too cookie-cutter, and only you know your preferences and personal needs. Far better to eat what you're hungry for and nothing else. Stick to mostly fresh fruits and vegetables, get tons of lean protein, and don't skimp on the fatty stuff (meaning nuts and avocados and stuff, not bacon grease).

You should be fine going for little runs on "off" days, but ideally if the plan calls for off days, you'll want to actually have an off day. If you need to do something, I'd recommend cross-training in some way, just to take the pressure off your joints and connective tissues.